Cloud vendor secondary virtualization restrictions

Tencent cloud server is a physical machine , It can be divided into black stone and non black stone

Blackstone physical machine supports virtualization

Non black stone CVM It is already a virtual machine , Secondary virtualization is not supported , Mainstream manufacturers in the industry do not support secondary virtualization （ If anyone finds out , Please share , thank you ）

https://help.aliyun.com/document_detail/25412.html

https://cloud.tencent.com/document/product/213/15379

No support , From the perspective of language style , Alibaba cloud direct , Tencent cloud is euphemistic ,“ Not for the time being ”, It's actually the past 、 Now? 、 future , It is impossible for virtual machines to release secondary virtualization , Because each virtualization needs to be continuously polished .

How to determine whether virtualization is supported ？

①https://www.grc.com/files/securable.exe

Ordinary CVM：

Blackstone ：

②cpu-z

http://www.cpuid.com/softwares/cpu-z.html

The instruction set has “VT-x”, Description supports virtualization , If it doesn't, it doesn't support